body{
    margin: 0;
    background-color: #F5F5F5;
    font-family: '微软雅黑';
    font-size: 4vw;
}
a{
    display: inline-block;
    text-decoration: none;
    color: #666;
}
header{
    width: 100%;
    height: 12vw;
    background-color: #F2F2F2;
}
header nav{
    height: 6vw;
    line-height: 12vw;
    color: #666;
    padding: 0 4vw;
    display: flex;
    justify-content: space-between;
}
header img{
    height: 6vw;
}

.mainLine{
    width: 100%;
    height: 14vw;
    background-color: #fff;
    padding:4vw;
    box-sizing: border-box;

    display: flex;
    justify-content: space-between;
    align-items: center;
}
.mainLine img{
    height: 6vw;
}

.shop{
    font-size: 3.5vw;
    color: #aaa;
    background-color: #eee;
    justify-content: center;
}
.shop img{
    height: 12vw;
}
.button{
    color: #000;
    border: 1px solid #aaa;
    padding: 0.5vw 2vw;
}




section{
    width: 100%;
}
.main{
    width: 100%;
    background-color: #fff;
    padding: 1vw 0;
    display: flex;
    justify-content: space-between;
}
.main>div{
    width: 49.5%
}
.main img{
    width: 100%;
}
h3{
   font-weight: normal;
   font-size: 3.5vw; 
   color: #000;
   margin-left: 3vw;
}
.main span{
    margin-left: 3vw;
    font-weight: bold;
    color: #FF6600;
}



.cartChecked{
    background-position: 0 29%;
}